block apps from installing
secpol.msc
security
application control
applocker
packaged app rules
new rule
next
deny
select
windows spotlight
slider up to package name
create

OR

Press Windows + R, type: regedit and hit Enter;
 Registry Editor file will show up in C:\Windows directory and you can navigate to the folder and run regedit.exe directly;
 Then open Registry Editor and go to: 
  HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsStore

Create a new 32-bit DWORD value named AutoDownload and set it to 2 to disable app auto-update;
 After this, restart Windows 10.


uninstall xbox app & onenote
run powershell as admin
run following:	
Get-AppxPackage Microsoft.XboxApp | Remove-AppxPackage
Get-AppxPackage *OneNote* | Remove-AppxPackage
Get-AppxPackage Microsoft.windowscommunicationsapps | Remove-AppxPackage
Get-AppxPackage *xboxapp* | Remove-AppxPackage

cmd prompt
taskkill /f /im OneDrive.exe  
%systemRoot%\SysWOW64\OneDriveSetup.exe /uninstall
tzutil /s "Eastern Standard Time"
powercfg -h off

disable cortana
gpedit.msc
Computer Configuration 
Administrative Templates 
Windows Components 
Search
double click on Allow Cortana
Select Disabled
Apply 


uninstall onedrive
admin command mode
run	taskkill /f /im OneDrive.exe
In 32-bit Windows 10 (x86):
%SystemRoot%\System32\OneDriveSetup.exe /uninstall

In 64-bit Windows 10 (x64):
%SystemRoot%\SysWOW64\OneDriveSetup.exe /uninstall